A new pH catheter for laryngopharyngeal reflux: Normal values

  title={A new pH catheter for laryngopharyngeal reflux: Normal values},
  author={George Sun and Srikant Muddana and James C. Slaughter and Sean Casey and Eric Hill and Farnoosh Farrokhi and C. Gaelyn Garrett and Michael Fredrick Vaezi},
  journal={The Laryngoscope},
Laryngopharyngeal reflux (LPR) represents a challenging field. Therapeutic studies of proton pump inhibitors in LPR have shown mixed results. The Restech pH catheter (Respiratory Technology Corp., San Diego, CA) is a minimally invasive device for detection of oropharyngeal acid reflux. The aim of this study was to provide normative data using this device in both distal esophagus and oropharynx. 

An oropharyngeal pH monitoring device to evaluate patients with chronic laryngitis

  • E. YukselJ. Slaughter M. Vaezi
  • Medicine
    Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society
  • 2013
In vitro and in vivo studies were performed to systematically assess the performance characteristics of an oropharyngeal pH probe to diagnose gastro‐esophageal reflux disease and show limited sensitivity.

Gastroesophageal reflux evaluation in patients affected by chronic cough: Restech versus multichannel intraluminal impedance/pH metry

Oropharyngeal pH monitoring has been developed to detect supra‐esophageal gastric reflux (SEGR) and multichannel intraluminal impedance/ pH monitoring (MII/pH) was compared.

New tests for the evaluation of laryngopharyngeal reflux.

  • M. Vaezi
  • Medicine
    Gastroenterology & hepatology
  • 2013
MV Laryngopharyngeal reflux (LPR) is a term often used by ear, nose, and throat (ENT) physicians to refer to laryngeal findings suspected of being caused by reflux disease. Gastroenterologists more

A novel scoring system for evaluating laryngopharyngeal reflux

  • L. HorvathP. HagmannE. BurriM. Kraft
  • Medicine
    Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
  • 2021
The objective of this study was to establish a simple and reliable scoring system for evaluating LPR consisting of both subjective and objective criteria.

Correlation of salivary and nasal lavage pepsin with MII‐pH testing

Laryngopharyngeal reflux (LPR) is a common upper airway disease. Salivary pepsin is a proposed marker for LPR; however, the optimal time for collection of specimens for pepsin detection and pepsin's

Pharyngeal pH and Impedance Monitoring

Further outcome studies are needed to assess the role of ­pharyngeal impedance and pH monitoring in this group of patients and to determine who might symptomatically benefit from medical or surgical intervention.

Normal esophageal physiology and laryngopharyngeal reflux.

Is empirical treatment a reasonable strategy for laryngopharyngeal reflux? A contemporary review

Concerns exist related to inaccurate diagnosis, the cost and morbidity of potentially unnecessary PPI prescriptions, and availability and interpretation of objective reflux testing.

Laryngopharyngeal reflux: diagnosis, treatment and latest research

Understanding of extra-oesophageal reflux symptomology is evolving, new equipment and techniques suggest further areas of research, and as yet effective therapy remains elusive for some.

Laryngopharyngeal reflux: diagnosis, treatment and latest research

Understanding of extra-oesophageal reflux symptomology is evolving and new equipment and techniques suggest further areas of research, and as yet effective therapy remains elusive for some.



Exclusion of pH Artifacts is Essential for Hypopharyngeal pH Monitoring

This data indicates that pH monitoring for suspected laryngopharyngeal reflux (LPR) requires additional investigation to establish a cause-and-effect relationship between pH and LPR severity.

ACG Practice Guidelines: Esophageal Reflux Testing

Guidelines for esophageal reflux testing are developed under the auspices of the American College of Gastroenterology and its Practice Parameters Committee and approved by the Board of Trustees.

Laryngeal signs and symptoms and gastroesophageal reflux disease (GERD): a critical assessment of cause and effect association.

  • M. VaeziD. HicksT. AbelsonJ. Richter
  • Medicine
    Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association
  • 2003
The reasons for this controversy are discussed and the recent data attempting to clarify the cause and effect relationship between GERD and ENT are highlighted.

Ambulatory Esophageal pH Monitoring Using a Wireless System

The wireless Bravo pH System successfully recorded esophageal acid exposure in 96% of the patients during a 24-h period and in 89% of subjects for >36 h, slightly higher than observed with conventional systems.

Normal 24-Hr ambulatory esophageal pH values

These normal esophageal pH values can be used confidently as standards in any laboratory, and consideration should be given to developing separate standards for men and women.

24-H pharyngeal pH monitoring in healthy volunteers: a normative study.

BACKGROUND Gastropharyngeal reflux has been associated with disorders of the upper and lower airways. It may be shown by pharyngeal pH-metry, but reports on normality in healthy volunteers are

Characteristics and Clinical Relevance of Proximal Esophageal pH Monitoring

The findings of the present article do not support routine proximal esophageal pH monitoring as a clinical tool: PR does not differentiate patients with typical or atypical GERD manifestations and depends mainly on DR.

Proton Pump Inhibitor Therapy for Suspected GERD-Related Chronic Laryngitis: A Meta-Analysis of Randomized Controlled Trials

PPI therapy may offer a modest, but nonsignificant, clinical benefit over placebo in suspected GERD-related chronic laryngitis, and validated diagnostic guidelines may facilitate the recognition of those patients most likely to respond favorably to PPI treatment.